Home / 728,867.71-1,093,617.33-391,514.77

Finding the Fourth Proportional to 728,867.71, 1,093,617.33 and 391,514.77

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Solution

The fourth proportional to 728,867.71, 1,093,617.33 and 391,514.77 is: 587,441.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,867.71 : 1,093,617.33 = 391,514.77 : x
  2. Step 2: Convert to fraction form
    728,867.71/1,093,617.33 = 391,514.77/x
  3. Step 3: Cross multiply
    728,867.71x = 1,093,617.33 × 391,514.77
  4. Step 4: Simplify right side
    728,867.71x = 428,167,337,422.96
  5. Step 5: Solve for x
    x = 428,167,337,422.96/728,867.71
  6. Step 6: Final answer
    x = 587,441.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.